Final answer:
A lancet is the device used for a dermal puncture, designed to make a small incision in the skin for blood testing. Other devices like Vacutainers and butterfly needles are used for different types of blood collection or injections. The information given refers to a 'noncritical item' as a device that contacts intact skin without penetrating tissues or mucous membranes.
Step-by-step explanation:
The device used for a dermal puncture is a lancet. A lancet is a small, sharp instrument used for capillary blood sampling, often used in medical settings such as glucose testing or neonatal screening. It is specifically designed to make a small cut or incision in the skin, just enough to draw a small amount of blood for testing. In contrast, a Vacutainer is used for venipuncture to collect venous blood, a butterfly needle is a small, winged needle also used for venipuncture or IV injections, and an Unopette system is a device for diluting and dispensing a precise volume of blood for hematological tests.
According to the referenced information, a medical item that comes into contact with intact skin and does not penetrate sterile tissues or come into contact with mucous membranes is called a noncritical item.